After he broke his silence last night here, tonight we're learning new details about that bizarre hoax on notre dame football star manti te'o, about the man behind the plot and about another possible victim of his tactics. Here again tonight abc's matt gutman. Reporter: Tonight we learned the hoax was much bigger than manti te'o. I think at the time they were messaging anybody that was, you know, well known in the polynesian community. Reporter: Tessi tolutau says she was one of four people duped by a social media prankster to fabricated an entirely new person who for years acted as tessi's pal and the notre dame star's girlfriend. He wrote, she keeps talking like she knows everyone and I'm thinking it's a prank. Reporter: He was questioning whether she was real as far back as 2010. Who created that fake person that fooled so many? &#9834; Reporter: Victims say ronaiah tuiasosopo, a devote church leader, posted dozens of video on youtube. What's up, everyone? Reporter: But secretly, he was enlisting friends and even his 9-year-old sister to trick the notre dame line backer into believing his fake girlfriend was real. The nearly four-year deception began to unravel in early december when te'o received a call from lennay kekua, the girlfriend he thought was real, three months after she was supposed to have died of leukemia. And I went on a rampage. Like how could you do this to me? We know five people who have been duped into believing this beautiful woman was real. Hearts have been broken, reputations tarnished, but so far no crime committed, no charges pressed.

This transcript has been automatically generated and may not be 100% accurate.